Car-wheel



(No Model.)

R. N. ALLEN.

GAR WHEEL.

No. 318,940. Patented June 2, 1885.

fem cm lliviTen STaTns PaTnNT @Trica- RICHARD N. ALLEN, F CLEVELAND, OHIO.

CAR-WHEEL.

SPECIFICATION forming part of Letters Patent No. 318,940, dated June 2, 1885.

Application tiled December 2G, 1884. (No model.)

To @ZZ whom it may concern: y

Beit known that I, RICHARD N. ALLEN, of the city of Cleveland, in the county of Cuyahoga and State of Ohio, have invented a new and useful Improvement in Car-Vheels, of which the following is a specification.

The present invention relates to that class of car-Wheels in which the tire, the hub, and the body ofthe wheel are of separate pieces, u nited and secured together in such manner that the tire, when Worn out or broken, can be readily y removed and a new tire substituted. n

In Letters Patent No. 288,475, granted to me March l, 1881, for wheels of this class, the tire was secured to the central core and side plates by bolting the overlapping peripheries of the plates through a web projecting inwardly from the face of the tire and through the periphery of the core. In such construction it is desirable to make the central core in one block or piece, and consequently it is necessary to form the web oft' from the center of the tire, and nearer the outer edge thereof, and when the plates are secured as shown in that patent the outside plate, which is in contact with and is bolted directly to the web of the tire, is much more firmly united to the tire than the plate upon the other side of the wheel, which is only secured to the tire by the bolt, which first passes through the width of the core. This construction leaves the union of the inner plate of the Wheel to the tire less se cure than is desired.

It is the object of the present invention to provide means for uniting the periphery of the inner plate directly to the tire, and thereby render the attachment of this plate to the tire as irm and reliable as that of the outer plate; and I accomplish this .by forming the periphery of the inner plate into an inwardiy-pro jeeting flange, which isforced into an annular groove formed in the edge of the tire.

The invention is illustrated in the accompanying drawings, in which Figure lis a central cross-section of a car-wheel containing my improvement, and Fig. 2 is a view in elevation of the inner side or face of the same.

In the drawings, T represents the tire of the Wheel, which is provided with a web or iiange, W', located near the outer edge of the tire, and

projecting from its inner face toward the center of the wheel. tire is an annular groove, g.

P represents the outer plate of the wheel, the periphery of which overlaps the web V.

P is the inner plate, whose periphery is provided with a flange, f, corresponding with and entering into the groove g,for1ncd in the tire. The inner or central peripheries of both of the plates P and Pare in contact with the hubH of the wheel.

F is a iiange projecting outward from the hub.

C is the central core,of compressed paper or similar inateriahtilling the space between the hub and tire, and inclosed laterally by the plates P P. The tire is secured to the plates P and I" and to the core C by means of a series of bolts, Z) b, passing through the web NV, the plates P and P', and the core C, and the plato P is also secured directly to the tire by the flange f, entered into the corresponding groove, g. The plates P and P and the core C are al so secured to the hub by a series of bolts, b b', passing through the said plates and core and through the ange F of the hub.

The several parts above described of which the wheel is composed are conveniently and eiectively brought together and secured in place in the following way: The plate P is first forced into position upon the hub H, then the core C, then the tire, the iiange f being inserted into the groove g, and, lastly, the outer plate, l?. Hydraulic pressure is conveniently employed to force the several parts into their final relative positions. The bolt-holes are then bored and the bolts inserted and drawn and held in place by their nuts.

The tire is preferably made of cast-steel rolled into the proper shape and size, and the plates P and P are made of wrought-iron or steel or other proper metal. The core C is preferably made of compressed paper.

It is readily seen that in the above-described construction the tire is secured directly to the peripheries of each of the side plates in such manner that it cannot be sprung or forced from out of contact with either plateiwithout actually breaking the bolts in the one case or the re-r tainingtlange in the other, and at the same On the inner edge of the.

IOO

time the core is held in its proper position by to the tire by a ilange upon its periphery enthe bolts passing through the plates and the' tered into a corresponding groove formed in web of thetire and the core. theedge of the tire, the several parts being What is claimed as new is secured together by bolts, substantially as set 5 A oar-Wheel composed of a tire provided forth.

with a web, WV, projecting inwardly from its face and located off from its central line, a oentral core, C, a hub, H, and side plates, P and Vitnesses:

1?', one of which is bolted directly to the web RoBT. H. DUNCAN,

1o of the tire, While the opposite plate is secured R. F. GAYLORD.

RICHARD N. ALLEN. Y 

